Question
upstudy study bank question image url

1. \( P(X)=\frac{1}{5} \), for \( X=0,1,2,3,4,5 \)

Ask by Klein Patel. in the Philippines
Jan 21,2025

Real Tutor Solution

Tutor-Verified Answer

Answer

The probability distribution \( P(X) = \frac{1}{5} \) for \( X = 0, 1, 2, 3, 4, 5 \) is incorrect because the total probability exceeds 1. Each probability should be \( \frac{1}{6} \) to sum to 1.

Solution

It seems like you are providing a probability distribution function \( P(X) \) for a discrete random variable \( X \) that takes on values from 0 to 5. The function is defined as \( P(X) = \frac{1}{5} \) for each of these values. Let's analyze this step by step: 1. **Identify the values of \( X \)**: The random variable \( X \) can take the values \( 0, 1, 2, 3, 4, 5 \). 2. **Probability Distribution**: The probability for each value of \( X \) is given as \( P(X) = \frac{1}{5} \). This means that each outcome has an equal probability of occurring. 3. **Check the total probability**: The sum of the probabilities for all possible values of \( X \) should equal 1. We can calculate this as follows: \[ P(0) + P(1) + P(2) + P(3) + P(4) + P(5) = \frac{1}{5} + \frac{1}{5} + \frac{1}{5} + \frac{1}{5} + \frac{1}{5} + \frac{1}{5} \] Calculating this gives: \[ 6 \times \frac{1}{5} = \frac{6}{5} \] Since \( \frac{6}{5} \) is greater than 1, this indicates that the probabilities do not sum to 1, which violates the fundamental property of probability distributions. ### Conclusion The provided probability distribution \( P(X) = \frac{1}{5} \) for \( X = 0, 1, 2, 3, 4, 5 \) is incorrect because the total probability exceeds 1. To correct this, the probabilities should be adjusted so that they sum to 1. Since there are 6 outcomes, each probability should be: \[ P(X) = \frac{1}{6} \] for \( X = 0, 1, 2, 3, 4, 5 \). If you have any further questions or need additional calculations, feel free to ask!

Reviewed and approved by the UpStudy tutoring team

error msg
Explain
Simplify this solution

Bonus Knowledge

Did you know that this probability distribution represents a discrete uniform distribution? In simpler terms, your random variable \( X \) has an equal likelihood of taking on any of the values from 0 to 5, making this scenario particularly fair and fun! It's like rolling a fair die where the outcomes are equally probable! When working with such distributions, a common mistake is assuming that all properties, like the mean and variance, behave the same way as intuitive "averages." In this case, memorizing the formula for the mean, \( \mu = \frac{n-1}{2} \) where \( n \) is the number of outcomes, can help you avoid confusion. With 6 outcomes (0 to 5), the mean is \( 2.5 \). Keep that in mind for a smoother analysis!

Related Questions

Latest Probability Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy